Home / 675,426.90-1,013,140.17-320,247.12

Finding the Fourth Proportional to 675,426.90, 1,013,140.17 and 320,247.12

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Solution

The fourth proportional to 675,426.90, 1,013,140.17 and 320,247.12 is: 480,370.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,426.90 : 1,013,140.17 = 320,247.12 : x
  2. Step 2: Convert to fraction form
    675,426.90/1,013,140.17 = 320,247.12/x
  3. Step 3: Cross multiply
    675,426.90x = 1,013,140.17 × 320,247.12
  4. Step 4: Simplify right side
    675,426.90x = 324,455,221,598.81
  5. Step 5: Solve for x
    x = 324,455,221,598.81/675,426.90
  6. Step 6: Final answer
    x = 480,370.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.